Nipple and bottle cap retainer



FIG. 1 is a top perspective view of a nipple and bottle cap retainer showing my new design with two bottle caps and two bottle nipples being shown in broken lines for illustrative purpose only;

FIG. 2 is a top plan view, the bottom being the same in appearance;

FIG. 3 is a right side elevational view, the opposite side being the same in appearance; and

FIG. 4 is a front elevational view, the rear being the same in appearance. 

The ornamental design for a nipple and bottle cap retainer, as shown and described. 